New Market, Maryland has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 7 °C (low) to 18 °C (high). Annual precipitation averages 1148.8 Millimeters. New Market is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -4.3 °C | 4.8 °C | 81.03 mm |
| February | -3.4 °C | 6.7 °C | 66.29 mm |
| March | 0.3 °C | 11.5 °C | 97.03 mm |
| April | 5.7 °C | 18.3 °C | 87.88 mm |
| May | 11.2 °C | 23.2 °C | 106.17 mm |
| June | 16.1 °C | 27.9 °C | 109.22 mm |
| July | 18.8 °C | 30.3 °C | 118.36 mm |
| August | 17.7 °C | 29.2 °C | 85.09 mm |
| September | 14 °C | 25.6 °C | 117.35 mm |
| October | 7.7 °C | 19.1 °C | 100.08 mm |
| November | 2.1 °C | 12.8 °C | 84.84 mm |
| December | -1.8 °C | 7.1 °C | 95.5 mm |
| Annual | 7 °C | 18 °C | 1148.84 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |